There is a marriage of a Martha Leacock to Albert H. Harwood Jan 1, 1903 in Cass Co., North Dakota. If this is the correct Martha and she died in 1909, should be under Harwood.
Here's what I'm seeing and a possible scenario of sequence of events.
Could Albert H be Albert W?
In 1900 Albert W is married to a Tena/Tina
1900 census:
https://www.familysearch.org/ark:/61903/1:1:M9VX-CBQTina died in 1902. Age and POB match. She is buried at Riverside Cemetery.
Cemetery records:
https://www.familysearch.org/ark:/61903/1:1:6CGZ-FD3Z============
In Jan 1903 he marries Martha Leacock. Could there be a transcription error and the "H" is actually a "W"??
Marriage:
https://www.rootschat.com/links/01run/They have a daughter, Mable in Nov/Dec 1903.
The Fargo Forum and Daily Republican
Fargo, North Dakota
02 May 1904, Mon • Page 11
Clip:
https://www.newspapers.com/clip/110060320/mable-harwood-christening-1904/Mrs A W Harwood dies 15 Feb 1905. Obit mentions she leaves her husband & 1 child (Mable ?).
The Fargo Forum and Daily Republican
Fargo, North Dakota
15 Feb 1905, Wed • Page 4
Death:
https://www.newspapers.com/clip/110060529/martha-harwood-death/The Fargo Forum and Daily Republican
Fargo, North Dakota
18 Feb 1905, Sat • Page 8
Funeral:
https://www.newspapers.com/clip/110060672/martha-harwood-funeral/She is buried at Riverside Cemetery. Same as Albert's wife Tina. Cemetery records list her as Martha Harwood, born 1872 in Ireland. The death & funeral notices only listed her as Mrs A.W. Harwood, but this confirms her name was Martha.
Cemetery Records:
https://www.familysearch.org/ark:/61903/1:1:6CGZ-F8T2===================
Albert W gets remarried in June 1905 to Sarah Waters.
The Fargo Forum and Daily Republican
Fargo, North Dakota
24 Jun 1905, Sat • Page 3
Marriage License issued:
https://www.newspapers.com/clip/110061401/harwood-waters-marriage-license/Albert & Sarah have a son in 1907. He dies in Dec 1909. He is also buried in Riverside Cemetery.
The Fargo Forum and Daily Republican
Fargo, North Dakota
06 Dec 1909, Mon • Page 8
Death:
https://www.newspapers.com/clip/110061731/walter-harwood-death/Cemetery records:
https://www.familysearch.org/ark:/61903/1:1:6CGZ-FDW2Find A Grave:
https://www.findagrave.com/memorial/232875956/walter-robert-harwood=================
Albert & Sarah in 1910 census:
1910 census:
https://www.familysearch.org/ark:/61903/1:1:MLGG-9X2Albert and Martha's daughter, Mable, is living with an aunt/uncle in the 1910 census.
1910 census:
https://www.familysearch.org/ark:/61903/1:1:MLPM-3T1